define_key(const char *str, int keycode)
{
int code = ERR;
T((T_CALLED("define_key(%s,%d)"), _nc_visbuf(str), keycode));
if (SP == 0) {
code = ERR;
} else if (keycode > 0) {
if (str != 0) {
define_key(str, 0);
} else if (has_key(keycode)) {
while (_nc_remove_key(&(SP->_keytry), (unsigned) keycode))
code = OK;
}
if (str != 0) {
if (key_defined(str) == 0) {
(void) _nc_add_to_try(&(SP->_keytry), str, (unsigned) keycode);
code = OK;
} else {
code = ERR;
}
}
} else {
while (_nc_remove_string(&(SP->_keytry), str))
code = OK;
}
returnCode(code);
}
static void
really_define_key(WINDOW *win, const char *new_string, int code)
{
int rc;
const char *code_name = keyname(code);
char *old_string;
char *vis_string = 0;
char temp[80];
if (code_name == 0) {
sprintf(temp, "Keycode %d", code);
code_name = temp;
}
if ((old_string = keybound(code, 0)) != 0) {
wprintw(win, "%s is %s\n",
code_name,
vis_string = visible(old_string));
} else {
wprintw(win, "%s is not bound\n",
code_name);
}
log_last_line(win);
if (vis_string != 0) {
free(vis_string);
vis_string = 0;
}
vis_string = visible(new_string);
if ((rc = key_defined(new_string)) > 0) {
wprintw(win, "%s was bound to %s\n", vis_string, keyname(rc));
log_last_line(win);
} else if (new_string != 0 && rc < 0) {
wprintw(win, "%s conflicts with longer strings\n", vis_string);
log_last_line(win);
}
rc = define_key(new_string, code);
if (rc == ERR) {
wprintw(win, "%s unchanged\n", code_name);
log_last_line(win);
} else if (new_string != 0) {
wprintw(win, "%s is now bound to %s\n",
vis_string,
code_name);
log_last_line(win);
} else if (old_string != 0) {
wprintw(win, "%s deleted\n", code_name);
log_last_line(win);
}
if (vis_string != 0)
free(vis_string);
if (old_string != 0)
free(old_string);
}
static PyObject*
curses_ex_key_defined(PyObject *self, PyObject *args) {
const char *definition = NULL;
if (!PyArg_ParseTuple(args, "y:key_defined", &definition))
return NULL;
if (ERR == key_defined(definition)) {
curses_ex_seterror("key_defined");
return NULL;
}
Py_RETURN_NONE;
}
/** lookup key code by capability name
*
* ncurses automatically maps extended capabilities (such as kNXT3 or similar)
* to keycodes. But there is no fixed ordering for that.
* So we look up the key code by its name on strtup and use that afterwards.
* \param capability - capability name
* \return keycode or 0 if no associated key found
*/
int lookup_key(char *capability) {
char *esc_sequence = NULL;
int keycode = 0;
if (*capability == '\0') {
return 0;
}
esc_sequence = tigetstr(capability);
if (esc_sequence == NULL || esc_sequence == (char *)-1) {
return 0;
}
keycode = key_defined(esc_sequence);
return keycode;
}
_nc_init_keytry(void)
{
size_t n;
/* The SP->_keytry value is initialized in newterm(), where the SP
* structure is created, because we can not tell where keypad() or
* mouse_activate() (which will call keyok()) are first called.
*/
if (SP != 0) {
for (n = 0; _nc_tinfo_fkeys[n].code; n++) {
if (_nc_tinfo_fkeys[n].offset < STRCOUNT) {
(void) _nc_add_to_try(&(SP->_keytry),
CUR Strings[_nc_tinfo_fkeys[n].offset],
_nc_tinfo_fkeys[n].code);
}
}
#if NCURSES_XNAMES
/*
* Add any of the extended strings to the tries if their name begins
* with 'k', i.e., they follow the convention of other terminfo key
* names.
*/
{
TERMTYPE *tp = &(SP->_term->type);
for (n = STRCOUNT; n < NUM_STRINGS(tp); ++n) {
const char *name = ExtStrname(tp, n, strnames);
char *value = tp->Strings[n];
if (name != 0
&& *name == 'k'
&& value != 0
&& key_defined(value) == 0) {
(void) _nc_add_to_try(&(SP->_keytry),
value,
n - STRCOUNT + KEY_MAX);
}
}
}
#endif
#ifdef TRACE
_nc_trace_tries(SP->_keytry);
#endif
}
}
